Commit | Line | Data |
---|---|---|
277d1b5e | 1 | /* Support for the generic parts of PE/PEI, for BFD. |
d003868e | 2 | Copyright 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004 |
7898deda | 3 | Free Software Foundation, Inc. |
277d1b5e | 4 | Written by Cygnus Solutions. |
252b5132 | 5 | |
ff0c9faf | 6 | This file is part of BFD, the Binary File Descriptor library. |
252b5132 | 7 | |
ff0c9faf NC |
8 | This program is free software; you can redistribute it and/or modify |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2 of the License, or | |
11 | (at your option) any later version. | |
252b5132 | 12 | |
ff0c9faf NC |
13 | This program is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
252b5132 | 17 | |
ff0c9faf NC |
18 | You should have received a copy of the GNU General Public License |
19 | along with this program; if not, write to the Free Software | |
20 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
252b5132 | 21 | |
ff0c9faf | 22 | /* Most of this hacked by Steve Chamberlain, |
252b5132 | 23 | sac@cygnus.com |
277d1b5e | 24 | |
ff0c9faf NC |
25 | PE/PEI rearrangement (and code added): Donn Terry |
26 | Softway Systems, Inc. */ | |
252b5132 RH |
27 | |
28 | /* Hey look, some documentation [and in a place you expect to find it]! | |
29 | ||
30 | The main reference for the pei format is "Microsoft Portable Executable | |
31 | and Common Object File Format Specification 4.1". Get it if you need to | |
32 | do some serious hacking on this code. | |
33 | ||
34 | Another reference: | |
35 | "Peering Inside the PE: A Tour of the Win32 Portable Executable | |
36 | File Format", MSJ 1994, Volume 9. | |
37 | ||
38 | The *sole* difference between the pe format and the pei format is that the | |
39 | latter has an MSDOS 2.0 .exe header on the front that prints the message | |
40 | "This app must be run under Windows." (or some such). | |
41 | (FIXME: Whether that statement is *really* true or not is unknown. | |
42 | Are there more subtle differences between pe and pei formats? | |
43 | For now assume there aren't. If you find one, then for God sakes | |
44 | document it here!) | |
45 | ||
46 | The Microsoft docs use the word "image" instead of "executable" because | |
47 | the former can also refer to a DLL (shared library). Confusion can arise | |
48 | because the `i' in `pei' also refers to "image". The `pe' format can | |
49 | also create images (i.e. executables), it's just that to run on a win32 | |
50 | system you need to use the pei format. | |
51 | ||
52 | FIXME: Please add more docs here so the next poor fool that has to hack | |
53 | on this code has a chance of getting something accomplished without | |
ff0c9faf | 54 | wasting too much time. */ |
252b5132 | 55 | |
277d1b5e ILT |
56 | #include "libpei.h" |
57 | ||
b34976b6 | 58 | static bfd_boolean (*pe_saved_coff_bfd_print_private_bfd_data) |
277d1b5e ILT |
59 | PARAMS ((bfd *, PTR)) = |
60 | #ifndef coff_bfd_print_private_bfd_data | |
61 | NULL; | |
252b5132 | 62 | #else |
277d1b5e ILT |
63 | coff_bfd_print_private_bfd_data; |
64 | #undef coff_bfd_print_private_bfd_data | |
252b5132 RH |
65 | #endif |
66 | ||
b34976b6 | 67 | static bfd_boolean pe_print_private_bfd_data PARAMS ((bfd *, PTR)); |
277d1b5e | 68 | #define coff_bfd_print_private_bfd_data pe_print_private_bfd_data |
252b5132 | 69 | |
b34976b6 | 70 | static bfd_boolean (*pe_saved_coff_bfd_copy_private_bfd_data) |
277d1b5e ILT |
71 | PARAMS ((bfd *, bfd *)) = |
72 | #ifndef coff_bfd_copy_private_bfd_data | |
73 | NULL; | |
74 | #else | |
75 | coff_bfd_copy_private_bfd_data; | |
76 | #undef coff_bfd_copy_private_bfd_data | |
252b5132 RH |
77 | #endif |
78 | ||
b34976b6 | 79 | static bfd_boolean pe_bfd_copy_private_bfd_data PARAMS ((bfd *, bfd *)); |
277d1b5e | 80 | #define coff_bfd_copy_private_bfd_data pe_bfd_copy_private_bfd_data |
252b5132 | 81 | |
277d1b5e ILT |
82 | #define coff_mkobject pe_mkobject |
83 | #define coff_mkobject_hook pe_mkobject_hook | |
252b5132 | 84 | |
17505c5c | 85 | #ifndef NO_COFF_RELOCS |
252b5132 RH |
86 | static void coff_swap_reloc_in PARAMS ((bfd *, PTR, PTR)); |
87 | static unsigned int coff_swap_reloc_out PARAMS ((bfd *, PTR, PTR)); | |
17505c5c | 88 | #endif |
252b5132 | 89 | static void coff_swap_filehdr_in PARAMS ((bfd *, PTR, PTR)); |
252b5132 | 90 | static void coff_swap_scnhdr_in PARAMS ((bfd *, PTR, PTR)); |
b34976b6 | 91 | static bfd_boolean pe_mkobject PARAMS ((bfd *)); |
252b5132 | 92 | static PTR pe_mkobject_hook PARAMS ((bfd *, PTR, PTR)); |
252b5132 | 93 | |
17505c5c NC |
94 | #ifdef COFF_IMAGE_WITH_PE |
95 | /* This structure contains static variables used by the ILF code. */ | |
96 | typedef asection * asection_ptr; | |
97 | ||
98 | typedef struct | |
99 | { | |
100 | bfd * abfd; | |
101 | bfd_byte * data; | |
102 | struct bfd_in_memory * bim; | |
103 | unsigned short magic; | |
ee91ed79 | 104 | |
17505c5c NC |
105 | arelent * reltab; |
106 | unsigned int relcount; | |
107 | ||
108 | coff_symbol_type * sym_cache; | |
109 | coff_symbol_type * sym_ptr; | |
110 | unsigned int sym_index; | |
ee91ed79 | 111 | |
17505c5c NC |
112 | unsigned int * sym_table; |
113 | unsigned int * table_ptr; | |
ee91ed79 | 114 | |
17505c5c NC |
115 | combined_entry_type * native_syms; |
116 | combined_entry_type * native_ptr; | |
117 | ||
11c8a8d1 NC |
118 | coff_symbol_type ** sym_ptr_table; |
119 | coff_symbol_type ** sym_ptr_ptr; | |
ee91ed79 | 120 | |
17505c5c NC |
121 | unsigned int sec_index; |
122 | ||
123 | char * string_table; | |
124 | char * string_ptr; | |
125 | char * end_string_ptr; | |
ee91ed79 | 126 | |
17505c5c NC |
127 | SYMENT * esym_table; |
128 | SYMENT * esym_ptr; | |
129 | ||
130 | struct internal_reloc * int_reltab; | |
131 | } | |
132 | pe_ILF_vars; | |
133 | ||
134 | static asection_ptr pe_ILF_make_a_section PARAMS ((pe_ILF_vars *, const char *, unsigned int, flagword)); | |
135 | static void pe_ILF_make_a_reloc PARAMS ((pe_ILF_vars *, bfd_vma, bfd_reloc_code_real_type, asection_ptr)); | |
136 | static void pe_ILF_make_a_symbol PARAMS ((pe_ILF_vars *, const char *, const char *, asection_ptr, flagword)); | |
137 | static void pe_ILF_save_relocs PARAMS ((pe_ILF_vars *, asection_ptr)); | |
fc0a2244 | 138 | static void pe_ILF_make_a_symbol_reloc PARAMS ((pe_ILF_vars *, bfd_vma, bfd_reloc_code_real_type, struct bfd_symbol **, unsigned int)); |
b34976b6 | 139 | static bfd_boolean pe_ILF_build_a_bfd PARAMS ((bfd *, unsigned int, bfd_byte *, bfd_byte *, unsigned int, unsigned int)); |
17505c5c | 140 | static const bfd_target * pe_ILF_object_p PARAMS ((bfd *)); |
11c8a8d1 | 141 | static const bfd_target * pe_bfd_object_p PARAMS ((bfd *)); |
17505c5c NC |
142 | #endif /* COFF_IMAGE_WITH_PE */ |
143 | ||
252b5132 RH |
144 | /**********************************************************************/ |
145 | ||
17505c5c | 146 | #ifndef NO_COFF_RELOCS |
252b5132 RH |
147 | static void |
148 | coff_swap_reloc_in (abfd, src, dst) | |
149 | bfd *abfd; | |
150 | PTR src; | |
151 | PTR dst; | |
152 | { | |
153 | RELOC *reloc_src = (RELOC *) src; | |
154 | struct internal_reloc *reloc_dst = (struct internal_reloc *) dst; | |
155 | ||
dc810e39 AM |
156 | reloc_dst->r_vaddr = H_GET_32 (abfd, reloc_src->r_vaddr); |
157 | reloc_dst->r_symndx = H_GET_S32 (abfd, reloc_src->r_symndx); | |
252b5132 | 158 | |
dc810e39 | 159 | reloc_dst->r_type = H_GET_16 (abfd, reloc_src->r_type); |
252b5132 RH |
160 | |
161 | #ifdef SWAP_IN_RELOC_OFFSET | |
dc810e39 | 162 | reloc_dst->r_offset = SWAP_IN_RELOC_OFFSET (abfd, reloc_src->r_offset); |
252b5132 RH |
163 | #endif |
164 | } | |
165 | ||
252b5132 RH |
166 | static unsigned int |
167 | coff_swap_reloc_out (abfd, src, dst) | |
168 | bfd *abfd; | |
169 | PTR src; | |
170 | PTR dst; | |
171 | { | |
172 | struct internal_reloc *reloc_src = (struct internal_reloc *)src; | |
173 | struct external_reloc *reloc_dst = (struct external_reloc *)dst; | |
dc810e39 AM |
174 | H_PUT_32 (abfd, reloc_src->r_vaddr, reloc_dst->r_vaddr); |
175 | H_PUT_32 (abfd, reloc_src->r_symndx, reloc_dst->r_symndx); | |
252b5132 | 176 | |
dc810e39 | 177 | H_PUT_16 (abfd, reloc_src->r_type, reloc_dst->r_type); |
252b5132 RH |
178 | |
179 | #ifdef SWAP_OUT_RELOC_OFFSET | |
dc810e39 | 180 | SWAP_OUT_RELOC_OFFSET (abfd, reloc_src->r_offset, reloc_dst->r_offset); |
252b5132 RH |
181 | #endif |
182 | #ifdef SWAP_OUT_RELOC_EXTRA | |
dc810e39 | 183 | SWAP_OUT_RELOC_EXTRA(abfd, reloc_src, reloc_dst); |
252b5132 RH |
184 | #endif |
185 | return RELSZ; | |
186 | } | |
17505c5c | 187 | #endif /* not NO_COFF_RELOCS */ |
252b5132 RH |
188 | |
189 | static void | |
190 | coff_swap_filehdr_in (abfd, src, dst) | |
191 | bfd *abfd; | |
192 | PTR src; | |
193 | PTR dst; | |
194 | { | |
195 | FILHDR *filehdr_src = (FILHDR *) src; | |
196 | struct internal_filehdr *filehdr_dst = (struct internal_filehdr *) dst; | |
dc810e39 AM |
197 | filehdr_dst->f_magic = H_GET_16 (abfd, filehdr_src->f_magic); |
198 | filehdr_dst->f_nscns = H_GET_16 (abfd, filehdr_src-> f_nscns); | |
199 | filehdr_dst->f_timdat = H_GET_32 (abfd, filehdr_src-> f_timdat); | |
252b5132 | 200 | |
dc810e39 AM |
201 | filehdr_dst->f_nsyms = H_GET_32 (abfd, filehdr_src-> f_nsyms); |
202 | filehdr_dst->f_flags = H_GET_16 (abfd, filehdr_src-> f_flags); | |
203 | filehdr_dst->f_symptr = H_GET_32 (abfd, filehdr_src->f_symptr); | |
252b5132 RH |
204 | |
205 | /* Other people's tools sometimes generate headers with an nsyms but | |
206 | a zero symptr. */ | |
207 | if (filehdr_dst->f_nsyms != 0 && filehdr_dst->f_symptr == 0) | |
208 | { | |
209 | filehdr_dst->f_nsyms = 0; | |
210 | filehdr_dst->f_flags |= F_LSYMS; | |
211 | } | |
212 | ||
dc810e39 | 213 | filehdr_dst->f_opthdr = H_GET_16 (abfd, filehdr_src-> f_opthdr); |
252b5132 RH |
214 | } |
215 | ||
216 | #ifdef COFF_IMAGE_WITH_PE | |
cbff5e0d | 217 | # define coff_swap_filehdr_out _bfd_XXi_only_swap_filehdr_out |
252b5132 | 218 | #else |
cbff5e0d | 219 | # define coff_swap_filehdr_out _bfd_pe_only_swap_filehdr_out |
252b5132 | 220 | #endif |
252b5132 | 221 | |
252b5132 | 222 | static void |
e166a60f ILT |
223 | coff_swap_scnhdr_in (abfd, ext, in) |
224 | bfd *abfd; | |
225 | PTR ext; | |
226 | PTR in; | |
252b5132 RH |
227 | { |
228 | SCNHDR *scnhdr_ext = (SCNHDR *) ext; | |
229 | struct internal_scnhdr *scnhdr_int = (struct internal_scnhdr *) in; | |
230 | ||
ee91ed79 | 231 | memcpy(scnhdr_int->s_name, scnhdr_ext->s_name, sizeof (scnhdr_int->s_name)); |
dc810e39 AM |
232 | scnhdr_int->s_vaddr = GET_SCNHDR_VADDR (abfd, scnhdr_ext->s_vaddr); |
233 | scnhdr_int->s_paddr = GET_SCNHDR_PADDR (abfd, scnhdr_ext->s_paddr); | |
234 | scnhdr_int->s_size = GET_SCNHDR_SIZE (abfd, scnhdr_ext->s_size); | |
235 | scnhdr_int->s_scnptr = GET_SCNHDR_SCNPTR (abfd, scnhdr_ext->s_scnptr); | |
236 | scnhdr_int->s_relptr = GET_SCNHDR_RELPTR (abfd, scnhdr_ext->s_relptr); | |
237 | scnhdr_int->s_lnnoptr = GET_SCNHDR_LNNOPTR (abfd, scnhdr_ext->s_lnnoptr); | |
238 | scnhdr_int->s_flags = H_GET_32 (abfd, scnhdr_ext->s_flags); | |
252b5132 | 239 | |
cb43721d ILT |
240 | /* MS handles overflow of line numbers by carrying into the reloc |
241 | field (it appears). Since it's supposed to be zero for PE | |
242 | *IMAGE* format, that's safe. This is still a bit iffy. */ | |
243 | #ifdef COFF_IMAGE_WITH_PE | |
dc810e39 AM |
244 | scnhdr_int->s_nlnno = (H_GET_16 (abfd, scnhdr_ext->s_nlnno) |
245 | + (H_GET_16 (abfd, scnhdr_ext->s_nreloc) << 16)); | |
cb43721d ILT |
246 | scnhdr_int->s_nreloc = 0; |
247 | #else | |
dc810e39 AM |
248 | scnhdr_int->s_nreloc = H_GET_16 (abfd, scnhdr_ext->s_nreloc); |
249 | scnhdr_int->s_nlnno = H_GET_16 (abfd, scnhdr_ext->s_nlnno); | |
cb43721d | 250 | #endif |
252b5132 | 251 | |
ee91ed79 | 252 | if (scnhdr_int->s_vaddr != 0) |
252b5132 RH |
253 | { |
254 | scnhdr_int->s_vaddr += pe_data (abfd)->pe_opthdr.ImageBase; | |
255 | scnhdr_int->s_vaddr &= 0xffffffff; | |
256 | } | |
e166a60f | 257 | |
17505c5c | 258 | #ifndef COFF_NO_HACK_SCNHDR_SIZE |
a3476bef NC |
259 | /* If this section holds uninitialized data and is from an object file |
260 | or from an executable image that has not initialized the field, | |
c9ac8978 NC |
261 | or if the image is an executable file and the physical size is padded, |
262 | use the virtual size (stored in s_paddr) instead. */ | |
a3476bef NC |
263 | if (scnhdr_int->s_paddr > 0 |
264 | && (((scnhdr_int->s_flags & IMAGE_SCN_CNT_UNINITIALIZED_DATA) != 0 | |
c9ac8978 NC |
265 | && (! bfd_pe_executable_p (abfd) || scnhdr_int->s_size == 0)) |
266 | || (bfd_pe_executable_p (abfd) && scnhdr_int->s_size > scnhdr_int->s_paddr))) | |
252b5132 | 267 | { |
a3476bef | 268 | scnhdr_int->s_size = scnhdr_int->s_paddr; |
ff0c9faf | 269 | |
e166a60f ILT |
270 | /* This code used to set scnhdr_int->s_paddr to 0. However, |
271 | coff_set_alignment_hook stores s_paddr in virt_size, which | |
272 | only works if it correctly holds the virtual size of the | |
273 | section. */ | |
252b5132 | 274 | } |
17505c5c | 275 | #endif |
252b5132 RH |
276 | } |
277 | ||
b34976b6 | 278 | static bfd_boolean |
252b5132 RH |
279 | pe_mkobject (abfd) |
280 | bfd * abfd; | |
281 | { | |
282 | pe_data_type *pe; | |
dc810e39 AM |
283 | bfd_size_type amt = sizeof (pe_data_type); |
284 | ||
285 | abfd->tdata.pe_obj_data = (struct pe_tdata *) bfd_zalloc (abfd, amt); | |
252b5132 RH |
286 | |
287 | if (abfd->tdata.pe_obj_data == 0) | |
b34976b6 | 288 | return FALSE; |
252b5132 RH |
289 | |
290 | pe = pe_data (abfd); | |
291 | ||
292 | pe->coff.pe = 1; | |
277d1b5e ILT |
293 | |
294 | /* in_reloc_p is architecture dependent. */ | |
252b5132 | 295 | pe->in_reloc_p = in_reloc_p; |
cbff5e0d DD |
296 | |
297 | #ifdef PEI_FORCE_MINIMUM_ALIGNMENT | |
298 | pe->force_minimum_alignment = 1; | |
299 | #endif | |
300 | #ifdef PEI_TARGET_SUBSYSTEM | |
301 | pe->target_subsystem = PEI_TARGET_SUBSYSTEM; | |
302 | #endif | |
303 | ||
b34976b6 | 304 | return TRUE; |
252b5132 RH |
305 | } |
306 | ||
307 | /* Create the COFF backend specific information. */ | |
308 | static PTR | |
309 | pe_mkobject_hook (abfd, filehdr, aouthdr) | |
310 | bfd * abfd; | |
311 | PTR filehdr; | |
5f771d47 | 312 | PTR aouthdr ATTRIBUTE_UNUSED; |
252b5132 RH |
313 | { |
314 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; | |
315 | pe_data_type *pe; | |
316 | ||
82e51918 | 317 | if (! pe_mkobject (abfd)) |
252b5132 RH |
318 | return NULL; |
319 | ||
320 | pe = pe_data (abfd); | |
321 | pe->coff.sym_filepos = internal_f->f_symptr; | |
322 | /* These members communicate important constants about the symbol | |
323 | table to GDB's symbol-reading code. These `constants' | |
324 | unfortunately vary among coff implementations... */ | |
325 | pe->coff.local_n_btmask = N_BTMASK; | |
326 | pe->coff.local_n_btshft = N_BTSHFT; | |
327 | pe->coff.local_n_tmask = N_TMASK; | |
328 | pe->coff.local_n_tshift = N_TSHIFT; | |
329 | pe->coff.local_symesz = SYMESZ; | |
330 | pe->coff.local_auxesz = AUXESZ; | |
331 | pe->coff.local_linesz = LINESZ; | |
332 | ||
1135238b ILT |
333 | pe->coff.timestamp = internal_f->f_timdat; |
334 | ||
252b5132 RH |
335 | obj_raw_syment_count (abfd) = |
336 | obj_conv_table_size (abfd) = | |
337 | internal_f->f_nsyms; | |
338 | ||
339 | pe->real_flags = internal_f->f_flags; | |
340 | ||
341 | if ((internal_f->f_flags & F_DLL) != 0) | |
342 | pe->dll = 1; | |
343 | ||
4cfec37b ILT |
344 | if ((internal_f->f_flags & IMAGE_FILE_DEBUG_STRIPPED) == 0) |
345 | abfd->flags |= HAS_DEBUG; | |
346 | ||
252b5132 | 347 | #ifdef COFF_IMAGE_WITH_PE |
ee91ed79 | 348 | if (aouthdr) |
252b5132 RH |
349 | pe->pe_opthdr = ((struct internal_aouthdr *)aouthdr)->pe; |
350 | #endif | |
351 | ||
ee91ed79 | 352 | #ifdef ARM |
252b5132 RH |
353 | if (! _bfd_coff_arm_set_private_flags (abfd, internal_f->f_flags)) |
354 | coff_data (abfd) ->flags = 0; | |
355 | #endif | |
ee91ed79 | 356 | |
252b5132 RH |
357 | return (PTR) pe; |
358 | } | |
359 | ||
b34976b6 | 360 | static bfd_boolean |
277d1b5e ILT |
361 | pe_print_private_bfd_data (abfd, vfile) |
362 | bfd *abfd; | |
363 | PTR vfile; | |
364 | { | |
365 | FILE *file = (FILE *) vfile; | |
366 | ||
cbff5e0d | 367 | if (!_bfd_XX_print_private_bfd_data_common (abfd, vfile)) |
b34976b6 | 368 | return FALSE; |
252b5132 | 369 | |
277d1b5e ILT |
370 | if (pe_saved_coff_bfd_print_private_bfd_data != NULL) |
371 | { | |
372 | fputc ('\n', file); | |
373 | ||
374 | return pe_saved_coff_bfd_print_private_bfd_data (abfd, vfile); | |
375 | } | |
376 | ||
b34976b6 | 377 | return TRUE; |
277d1b5e | 378 | } |
252b5132 RH |
379 | |
380 | /* Copy any private info we understand from the input bfd | |
381 | to the output bfd. */ | |
382 | ||
b34976b6 | 383 | static bfd_boolean |
252b5132 RH |
384 | pe_bfd_copy_private_bfd_data (ibfd, obfd) |
385 | bfd *ibfd, *obfd; | |
386 | { | |
5c9c6a54 NC |
387 | /* PR binutils/716: Copy the large address aware flag. |
388 | XXX: Should we be copying other flags or other fields in the pe_data() | |
389 | structure ? */ | |
390 | if (pe_data (obfd) != NULL | |
391 | && pe_data (ibfd) != NULL | |
392 | && pe_data (ibfd)->real_flags & IMAGE_FILE_LARGE_ADDRESS_AWARE) | |
393 | pe_data (obfd)->real_flags |= IMAGE_FILE_LARGE_ADDRESS_AWARE; | |
394 | ||
cbff5e0d | 395 | if (!_bfd_XX_bfd_copy_private_bfd_data_common (ibfd, obfd)) |
b34976b6 | 396 | return FALSE; |
252b5132 RH |
397 | |
398 | if (pe_saved_coff_bfd_copy_private_bfd_data) | |
399 | return pe_saved_coff_bfd_copy_private_bfd_data (ibfd, obfd); | |
252b5132 | 400 | |
b34976b6 | 401 | return TRUE; |
252b5132 RH |
402 | } |
403 | ||
277d1b5e | 404 | #define coff_bfd_copy_private_section_data \ |
cbff5e0d | 405 | _bfd_XX_bfd_copy_private_section_data |
7d2b58d6 | 406 | |
cbff5e0d | 407 | #define coff_get_symbol_info _bfd_XX_get_symbol_info |
cb665cd3 | 408 | |
b1f10154 | 409 | #ifdef COFF_IMAGE_WITH_PE |
17505c5c NC |
410 | \f |
411 | /* Code to handle Microsoft's Image Library Format. | |
412 | Also known as LINK6 format. | |
ee91ed79 | 413 | Documentation about this format can be found at: |
17505c5c NC |
414 | |
415 | http://msdn.microsoft.com/library/specs/pecoff_section8.htm */ | |
416 | ||
417 | /* The following constants specify the sizes of the various data | |
418 | structures that we have to create in order to build a bfd describing | |
419 | an ILF object file. The final "+ 1" in the definitions of SIZEOF_IDATA6 | |
420 | and SIZEOF_IDATA7 below is to allow for the possibility that we might | |
421 | need a padding byte in order to ensure 16 bit alignment for the section's | |
422 | contents. | |
423 | ||
424 | The value for SIZEOF_ILF_STRINGS is computed as follows: | |
425 | ||
426 | There will be NUM_ILF_SECTIONS section symbols. Allow 9 characters | |
11c8a8d1 | 427 | per symbol for their names (longest section name is .idata$x). |
17505c5c NC |
428 | |
429 | There will be two symbols for the imported value, one the symbol name | |
430 | and one with _imp__ prefixed. Allowing for the terminating nul's this | |
11c8a8d1 | 431 | is strlen (symbol_name) * 2 + 8 + 21 + strlen (source_dll). |
17505c5c NC |
432 | |
433 | The strings in the string table must start STRING__SIZE_SIZE bytes into | |
434 | the table in order to for the string lookup code in coffgen/coffcode to | |
435 | work. */ | |
436 | #define NUM_ILF_RELOCS 8 | |
437 | #define NUM_ILF_SECTIONS 6 | |
438 | #define NUM_ILF_SYMS (2 + NUM_ILF_SECTIONS) | |
ee91ed79 | 439 | |
17505c5c NC |
440 | #define SIZEOF_ILF_SYMS (NUM_ILF_SYMS * sizeof (* vars.sym_cache)) |
441 | #define SIZEOF_ILF_SYM_TABLE (NUM_ILF_SYMS * sizeof (* vars.sym_table)) | |
442 | #define SIZEOF_ILF_NATIVE_SYMS (NUM_ILF_SYMS * sizeof (* vars.native_syms)) | |
11c8a8d1 | 443 | #define SIZEOF_ILF_SYM_PTR_TABLE (NUM_ILF_SYMS * sizeof (* vars.sym_ptr_table)) |
17505c5c NC |
444 | #define SIZEOF_ILF_EXT_SYMS (NUM_ILF_SYMS * sizeof (* vars.esym_table)) |
445 | #define SIZEOF_ILF_RELOCS (NUM_ILF_RELOCS * sizeof (* vars.reltab)) | |
446 | #define SIZEOF_ILF_INT_RELOCS (NUM_ILF_RELOCS * sizeof (* vars.int_reltab)) | |
11c8a8d1 NC |
447 | #define SIZEOF_ILF_STRINGS (strlen (symbol_name) * 2 + 8 \ |
448 | + 21 + strlen (source_dll) \ | |
449 | + NUM_ILF_SECTIONS * 9 \ | |
450 | + STRING_SIZE_SIZE) | |
17505c5c NC |
451 | #define SIZEOF_IDATA2 (5 * 4) |
452 | #define SIZEOF_IDATA4 (1 * 4) | |
453 | #define SIZEOF_IDATA5 (1 * 4) | |
454 | #define SIZEOF_IDATA6 (2 + strlen (symbol_name) + 1 + 1) | |
455 | #define SIZEOF_IDATA7 (strlen (source_dll) + 1 + 1) | |
456 | #define SIZEOF_ILF_SECTIONS (NUM_ILF_SECTIONS * sizeof (struct coff_section_tdata)) | |
ee91ed79 | 457 | |
17505c5c NC |
458 | #define ILF_DATA_SIZE \ |
459 | sizeof (* vars.bim) \ | |
460 | + SIZEOF_ILF_SYMS \ | |
461 | + SIZEOF_ILF_SYM_TABLE \ | |
462 | + SIZEOF_ILF_NATIVE_SYMS \ | |
11c8a8d1 | 463 | + SIZEOF_ILF_SYM_PTR_TABLE \ |
17505c5c NC |
464 | + SIZEOF_ILF_EXT_SYMS \ |
465 | + SIZEOF_ILF_RELOCS \ | |
466 | + SIZEOF_ILF_INT_RELOCS \ | |
467 | + SIZEOF_ILF_STRINGS \ | |
468 | + SIZEOF_IDATA2 \ | |
469 | + SIZEOF_IDATA4 \ | |
470 | + SIZEOF_IDATA5 \ | |
471 | + SIZEOF_IDATA6 \ | |
472 | + SIZEOF_IDATA7 \ | |
473 | + SIZEOF_ILF_SECTIONS \ | |
474 | + MAX_TEXT_SECTION_SIZE | |
475 | ||
17505c5c NC |
476 | /* Create an empty relocation against the given symbol. */ |
477 | static void | |
11c8a8d1 NC |
478 | pe_ILF_make_a_symbol_reloc (pe_ILF_vars * vars, |
479 | bfd_vma address, | |
480 | bfd_reloc_code_real_type reloc, | |
fc0a2244 | 481 | struct bfd_symbol ** sym, |
11c8a8d1 | 482 | unsigned int sym_index) |
17505c5c NC |
483 | { |
484 | arelent * entry; | |
485 | struct internal_reloc * internal; | |
486 | ||
487 | entry = vars->reltab + vars->relcount; | |
488 | internal = vars->int_reltab + vars->relcount; | |
ee91ed79 | 489 | |
17505c5c NC |
490 | entry->address = address; |
491 | entry->addend = 0; | |
492 | entry->howto = bfd_reloc_type_lookup (vars->abfd, reloc); | |
11c8a8d1 | 493 | entry->sym_ptr_ptr = sym; |
17505c5c NC |
494 | |
495 | internal->r_vaddr = address; | |
11c8a8d1 | 496 | internal->r_symndx = sym_index; |
17505c5c | 497 | internal->r_type = entry->howto->type; |
ee91ed79 | 498 | |
17505c5c | 499 | vars->relcount ++; |
ee91ed79 | 500 | |
17505c5c NC |
501 | BFD_ASSERT (vars->relcount <= NUM_ILF_RELOCS); |
502 | } | |
503 | ||
11c8a8d1 NC |
504 | /* Create an empty relocation against the given section. */ |
505 | static void | |
506 | pe_ILF_make_a_reloc (pe_ILF_vars * vars, | |
507 | bfd_vma address, | |
508 | bfd_reloc_code_real_type reloc, | |
509 | asection_ptr sec) | |
510 | { | |
511 | pe_ILF_make_a_symbol_reloc (vars, address, reloc, sec->symbol_ptr_ptr, | |
512 | coff_section_data (vars->abfd, sec)->i); | |
513 | } | |
514 | ||
17505c5c NC |
515 | /* Move the queued relocs into the given section. */ |
516 | static void | |
517 | pe_ILF_save_relocs (pe_ILF_vars * vars, | |
518 | asection_ptr sec) | |
519 | { | |
520 | /* Make sure that there is somewhere to store the internal relocs. */ | |
521 | if (coff_section_data (vars->abfd, sec) == NULL) | |
522 | /* We should probably return an error indication here. */ | |
523 | abort (); | |
524 | ||
525 | coff_section_data (vars->abfd, sec)->relocs = vars->int_reltab; | |
b34976b6 | 526 | coff_section_data (vars->abfd, sec)->keep_relocs = TRUE; |
17505c5c NC |
527 | |
528 | sec->relocation = vars->reltab; | |
529 | sec->reloc_count = vars->relcount; | |
530 | sec->flags |= SEC_RELOC; | |
531 | ||
532 | vars->reltab += vars->relcount; | |
533 | vars->int_reltab += vars->relcount; | |
534 | vars->relcount = 0; | |
535 | ||
dc810e39 | 536 | BFD_ASSERT ((bfd_byte *) vars->int_reltab < (bfd_byte *) vars->string_table); |
17505c5c NC |
537 | } |
538 | ||
539 | /* Create a global symbol and add it to the relevant tables. */ | |
540 | static void | |
541 | pe_ILF_make_a_symbol (pe_ILF_vars * vars, | |
542 | const char * prefix, | |
543 | const char * symbol_name, | |
544 | asection_ptr section, | |
545 | flagword extra_flags) | |
546 | { | |
547 | coff_symbol_type * sym; | |
548 | combined_entry_type * ent; | |
549 | SYMENT * esym; | |
550 | unsigned short sclass; | |
551 | ||
552 | if (extra_flags & BSF_LOCAL) | |
11c8a8d1 | 553 | sclass = C_STAT; |
17505c5c NC |
554 | else |
555 | sclass = C_EXT; | |
ee91ed79 KH |
556 | |
557 | #ifdef THUMBPEMAGIC | |
17505c5c NC |
558 | if (vars->magic == THUMBPEMAGIC) |
559 | { | |
560 | if (extra_flags & BSF_FUNCTION) | |
561 | sclass = C_THUMBEXTFUNC; | |
562 | else if (extra_flags & BSF_LOCAL) | |
11c8a8d1 | 563 | sclass = C_THUMBSTAT; |
17505c5c NC |
564 | else |
565 | sclass = C_THUMBEXT; | |
566 | } | |
567 | #endif | |
568 | ||
569 | BFD_ASSERT (vars->sym_index < NUM_ILF_SYMS); | |
ee91ed79 | 570 | |
17505c5c NC |
571 | sym = vars->sym_ptr; |
572 | ent = vars->native_ptr; | |
573 | esym = vars->esym_ptr; | |
574 | ||
575 | /* Copy the symbol's name into the string table. */ | |
576 | sprintf (vars->string_ptr, "%s%s", prefix, symbol_name); | |
577 | ||
10821322 NC |
578 | if (section == NULL) |
579 | section = (asection_ptr) & bfd_und_section; | |
ee91ed79 | 580 | |
17505c5c | 581 | /* Initialise the external symbol. */ |
dc810e39 AM |
582 | H_PUT_32 (vars->abfd, vars->string_ptr - vars->string_table, |
583 | esym->e.e.e_offset); | |
584 | H_PUT_16 (vars->abfd, section->target_index, esym->e_scnum); | |
17505c5c NC |
585 | esym->e_sclass[0] = sclass; |
586 | ||
587 | /* The following initialisations are unnecessary - the memory is | |
588 | zero initialised. They are just kept here as reminders. */ | |
ee91ed79 | 589 | |
17505c5c NC |
590 | /* Initialise the internal symbol structure. */ |
591 | ent->u.syment.n_sclass = sclass; | |
10821322 | 592 | ent->u.syment.n_scnum = section->target_index; |
17505c5c | 593 | ent->u.syment._n._n_n._n_offset = (long) sym; |
ee91ed79 | 594 | |
17505c5c NC |
595 | sym->symbol.the_bfd = vars->abfd; |
596 | sym->symbol.name = vars->string_ptr; | |
597 | sym->symbol.flags = BSF_EXPORT | BSF_GLOBAL | extra_flags; | |
598 | sym->symbol.section = section; | |
599 | sym->native = ent; | |
ee91ed79 | 600 | |
17505c5c | 601 | * vars->table_ptr = vars->sym_index; |
11c8a8d1 | 602 | * vars->sym_ptr_ptr = sym; |
ee91ed79 | 603 | |
17505c5c NC |
604 | /* Adjust pointers for the next symbol. */ |
605 | vars->sym_index ++; | |
606 | vars->sym_ptr ++; | |
11c8a8d1 | 607 | vars->sym_ptr_ptr ++; |
17505c5c NC |
608 | vars->table_ptr ++; |
609 | vars->native_ptr ++; | |
610 | vars->esym_ptr ++; | |
11c8a8d1 | 611 | vars->string_ptr += strlen (symbol_name) + strlen (prefix) + 1; |
17505c5c NC |
612 | |
613 | BFD_ASSERT (vars->string_ptr < vars->end_string_ptr); | |
614 | } | |
615 | ||
616 | /* Create a section. */ | |
617 | static asection_ptr | |
618 | pe_ILF_make_a_section (pe_ILF_vars * vars, | |
619 | const char * name, | |
620 | unsigned int size, | |
621 | flagword extra_flags) | |
622 | { | |
623 | asection_ptr sec; | |
624 | flagword flags; | |
ee91ed79 | 625 | |
17505c5c NC |
626 | sec = bfd_make_section_old_way (vars->abfd, name); |
627 | if (sec == NULL) | |
628 | return NULL; | |
ee91ed79 | 629 | |
17505c5c | 630 | flags = SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_KEEP | SEC_IN_MEMORY; |
ee91ed79 | 631 | |
17505c5c | 632 | bfd_set_section_flags (vars->abfd, sec, flags | extra_flags); |
ee91ed79 | 633 | |
17505c5c | 634 | bfd_set_section_alignment (vars->abfd, sec, 2); |
ee91ed79 | 635 | |
17505c5c NC |
636 | /* Check that we will not run out of space. */ |
637 | BFD_ASSERT (vars->data + size < vars->bim->buffer + vars->bim->size); | |
ee91ed79 | 638 | |
17505c5c NC |
639 | /* Set the section size and contents. The actual |
640 | contents are filled in by our parent. */ | |
dc810e39 | 641 | bfd_set_section_size (vars->abfd, sec, (bfd_size_type) size); |
17505c5c NC |
642 | sec->contents = vars->data; |
643 | sec->target_index = vars->sec_index ++; | |
644 | ||
645 | /* Advance data pointer in the vars structure. */ | |
646 | vars->data += size; | |
ee91ed79 | 647 | |
17505c5c NC |
648 | /* Skip the padding byte if it was not needed. |
649 | The logic here is that if the string length is odd, | |
650 | then the entire string length, including the null byte, | |
651 | is even and so the extra, padding byte, is not needed. */ | |
652 | if (size & 1) | |
653 | vars->data --; | |
ee91ed79 | 654 | |
17505c5c NC |
655 | /* Create a coff_section_tdata structure for our use. */ |
656 | sec->used_by_bfd = (struct coff_section_tdata *) vars->data; | |
657 | vars->data += sizeof (struct coff_section_tdata); | |
658 | ||
659 | BFD_ASSERT (vars->data <= vars->bim->buffer + vars->bim->size); | |
ee91ed79 | 660 | |
17505c5c NC |
661 | /* Create a symbol to refer to this section. */ |
662 | pe_ILF_make_a_symbol (vars, "", name, sec, BSF_LOCAL); | |
663 | ||
11c8a8d1 | 664 | /* Cache the index to the symbol in the coff_section_data structure. */ |
17505c5c | 665 | coff_section_data (vars->abfd, sec)->i = vars->sym_index - 1; |
ee91ed79 | 666 | |
17505c5c NC |
667 | return sec; |
668 | } | |
669 | ||
670 | /* This structure contains the code that goes into the .text section | |
671 | in order to perform a jump into the DLL lookup table. The entries | |
672 | in the table are index by the magic number used to represent the | |
673 | machine type in the PE file. The contents of the data[] arrays in | |
674 | these entries are stolen from the jtab[] arrays in ld/pe-dll.c. | |
675 | The SIZE field says how many bytes in the DATA array are actually | |
676 | used. The OFFSET field says where in the data array the address | |
677 | of the .idata$5 section should be placed. */ | |
678 | #define MAX_TEXT_SECTION_SIZE 32 | |
679 | ||
680 | typedef struct | |
681 | { | |
682 | unsigned short magic; | |
683 | unsigned char data[MAX_TEXT_SECTION_SIZE]; | |
684 | unsigned int size; | |
685 | unsigned int offset; | |
686 | } | |
687 | jump_table; | |
688 | ||
86033394 | 689 | static jump_table jtab[] = |
17505c5c NC |
690 | { |
691 | #ifdef I386MAGIC | |
692 | { I386MAGIC, | |
693 | { 0xff, 0x25, 0x00, 0x00, 0x00, 0x00, 0x90, 0x90 }, | |
694 | 8, 2 | |
695 | }, | |
696 | #endif | |
ee91ed79 | 697 | |
17505c5c NC |
698 | #ifdef MC68MAGIC |
699 | { MC68MAGIC, { /* XXX fill me in */ }, 0, 0 }, | |
700 | #endif | |
701 | #ifdef MIPS_ARCH_MAGIC_WINCE | |
702 | { MIPS_ARCH_MAGIC_WINCE, | |
703 | { 0x00, 0x00, 0x08, 0x3c, 0x00, 0x00, 0x08, 0x8d, | |
704 | 0x08, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00 }, | |
705 | 16, 0 | |
706 | }, | |
707 | #endif | |
ee91ed79 | 708 | |
17505c5c NC |
709 | #ifdef SH_ARCH_MAGIC_WINCE |
710 | { SH_ARCH_MAGIC_WINCE, | |
711 | { 0x01, 0xd0, 0x02, 0x60, 0x2b, 0x40, | |
712 | 0x09, 0x00, 0x00, 0x00, 0x00, 0x00 }, | |
713 | 12, 8 | |
714 | }, | |
715 | #endif | |
ee91ed79 | 716 | |
17505c5c NC |
717 | #ifdef ARMPEMAGIC |
718 | { ARMPEMAGIC, | |
719 | { 0x00, 0xc0, 0x9f, 0xe5, 0x00, 0xf0, | |
720 | 0x9c, 0xe5, 0x00, 0x00, 0x00, 0x00}, | |
721 | 12, 8 | |
722 | }, | |
723 | #endif | |
ee91ed79 | 724 | |
17505c5c NC |
725 | #ifdef THUMBPEMAGIC |
726 | { THUMBPEMAGIC, | |
727 | { 0x40, 0xb4, 0x02, 0x4e, 0x36, 0x68, 0xb4, 0x46, | |
728 | 0x40, 0xbc, 0x60, 0x47, 0x00, 0x00, 0x00, 0x00 }, | |
729 | 16, 12 | |
730 | }, | |
731 | #endif | |
732 | { 0, { 0 }, 0, 0 } | |
733 | }; | |
734 | ||
735 | #ifndef NUM_ENTRIES | |
736 | #define NUM_ENTRIES(a) (sizeof (a) / sizeof (a)[0]) | |
737 | #endif | |
738 | ||
739 | /* Build a full BFD from the information supplied in a ILF object. */ | |
b34976b6 | 740 | static bfd_boolean |
17505c5c | 741 | pe_ILF_build_a_bfd (bfd * abfd, |
dc810e39 | 742 | unsigned int magic, |
17505c5c NC |
743 | bfd_byte * symbol_name, |
744 | bfd_byte * source_dll, | |
745 | unsigned int ordinal, | |
746 | unsigned int types) | |
ee91ed79 | 747 | { |
17505c5c NC |
748 | bfd_byte * ptr; |
749 | pe_ILF_vars vars; | |
750 | struct internal_filehdr internal_f; | |
751 | unsigned int import_type; | |
752 | unsigned int import_name_type; | |
11c8a8d1 NC |
753 | asection_ptr id4, id5, id6 = NULL, text = NULL; |
754 | coff_symbol_type ** imp_sym; | |
755 | unsigned int imp_index; | |
17505c5c | 756 | |
17505c5c NC |
757 | /* Decode and verify the types field of the ILF structure. */ |
758 | import_type = types & 0x3; | |
759 | import_name_type = (types & 0x1c) >> 2; | |
760 | ||
761 | switch (import_type) | |
762 | { | |
763 | case IMPORT_CODE: | |
764 | case IMPORT_DATA: | |
765 | break; | |
ee91ed79 | 766 | |
17505c5c NC |
767 | case IMPORT_CONST: |
768 | /* XXX code yet to be written. */ | |
d003868e AM |
769 | _bfd_error_handler (_("%B: Unhandled import type; %x"), |
770 | abfd, import_type); | |
b34976b6 | 771 | return FALSE; |
ee91ed79 | 772 | |
17505c5c | 773 | default: |
d003868e AM |
774 | _bfd_error_handler (_("%B: Unrecognised import type; %x"), |
775 | abfd, import_type); | |
b34976b6 | 776 | return FALSE; |
17505c5c NC |
777 | } |
778 | ||
779 | switch (import_name_type) | |
780 | { | |
781 | case IMPORT_ORDINAL: | |
782 | case IMPORT_NAME: | |
783 | case IMPORT_NAME_NOPREFIX: | |
784 | case IMPORT_NAME_UNDECORATE: | |
785 | break; | |
ee91ed79 | 786 | |
17505c5c | 787 | default: |
d003868e AM |
788 | _bfd_error_handler (_("%B: Unrecognised import name type; %x"), |
789 | abfd, import_name_type); | |
b34976b6 | 790 | return FALSE; |
17505c5c NC |
791 | } |
792 | ||
793 | /* Initialise local variables. | |
ee91ed79 | 794 | |
17505c5c NC |
795 | Note these are kept in a structure rather than being |
796 | declared as statics since bfd frowns on global variables. | |
ee91ed79 | 797 | |
17505c5c NC |
798 | We are going to construct the contents of the BFD in memory, |
799 | so allocate all the space that we will need right now. */ | |
dc810e39 | 800 | ptr = bfd_zalloc (abfd, (bfd_size_type) ILF_DATA_SIZE); |
17505c5c | 801 | if (ptr == NULL) |
b34976b6 | 802 | return FALSE; |
17505c5c NC |
803 | |
804 | /* Create a bfd_in_memory structure. */ | |
805 | vars.bim = (struct bfd_in_memory *) ptr; | |
806 | vars.bim->buffer = ptr; | |
807 | vars.bim->size = ILF_DATA_SIZE; | |
808 | ptr += sizeof (* vars.bim); | |
ee91ed79 | 809 | |
17505c5c NC |
810 | /* Initialise the pointers to regions of the memory and the |
811 | other contents of the pe_ILF_vars structure as well. */ | |
812 | vars.sym_cache = (coff_symbol_type *) ptr; | |
813 | vars.sym_ptr = (coff_symbol_type *) ptr; | |
814 | vars.sym_index = 0; | |
815 | ptr += SIZEOF_ILF_SYMS; | |
ee91ed79 | 816 | |
17505c5c NC |
817 | vars.sym_table = (unsigned int *) ptr; |
818 | vars.table_ptr = (unsigned int *) ptr; | |
819 | ptr += SIZEOF_ILF_SYM_TABLE; | |
820 | ||
821 | vars.native_syms = (combined_entry_type *) ptr; | |
822 | vars.native_ptr = (combined_entry_type *) ptr; | |
823 | ptr += SIZEOF_ILF_NATIVE_SYMS; | |
11c8a8d1 NC |
824 | |
825 | vars.sym_ptr_table = (coff_symbol_type **) ptr; | |
826 | vars.sym_ptr_ptr = (coff_symbol_type **) ptr; | |
827 | ptr += SIZEOF_ILF_SYM_PTR_TABLE; | |
ee91ed79 | 828 | |
17505c5c NC |
829 | vars.esym_table = (SYMENT *) ptr; |
830 | vars.esym_ptr = (SYMENT *) ptr; | |
831 | ptr += SIZEOF_ILF_EXT_SYMS; | |
ee91ed79 | 832 | |
17505c5c NC |
833 | vars.reltab = (arelent *) ptr; |
834 | vars.relcount = 0; | |
835 | ptr += SIZEOF_ILF_RELOCS; | |
836 | ||
837 | vars.int_reltab = (struct internal_reloc *) ptr; | |
838 | ptr += SIZEOF_ILF_INT_RELOCS; | |
839 | ||
840 | vars.string_table = ptr; | |
841 | vars.string_ptr = ptr + STRING_SIZE_SIZE; | |
842 | ptr += SIZEOF_ILF_STRINGS; | |
843 | vars.end_string_ptr = ptr; | |
ee91ed79 | 844 | |
17505c5c NC |
845 | /* The remaining space in bim->buffer is used |
846 | by the pe_ILF_make_a_section() function. */ | |
847 | vars.data = ptr; | |
848 | vars.abfd = abfd; | |
849 | vars.sec_index = 0; | |
850 | vars.magic = magic; | |
ee91ed79 | 851 | |
17505c5c | 852 | /* Create the initial .idata$<n> sections: |
11c8a8d1 | 853 | [.idata$2: Import Directory Table -- not needed] |
17505c5c NC |
854 | .idata$4: Import Lookup Table |
855 | .idata$5: Import Address Table | |
856 | ||
857 | Note we do not create a .idata$3 section as this is | |
858 | created for us by the linker script. */ | |
17505c5c NC |
859 | id4 = pe_ILF_make_a_section (& vars, ".idata$4", SIZEOF_IDATA4, 0); |
860 | id5 = pe_ILF_make_a_section (& vars, ".idata$5", SIZEOF_IDATA5, 0); | |
11c8a8d1 | 861 | if (id4 == NULL || id5 == NULL) |
b34976b6 | 862 | return FALSE; |
ee91ed79 | 863 | |
17505c5c NC |
864 | /* Fill in the contents of these sections. */ |
865 | if (import_name_type == IMPORT_ORDINAL) | |
866 | { | |
867 | if (ordinal == 0) | |
868 | /* XXX - treat as IMPORT_NAME ??? */ | |
869 | abort (); | |
ee91ed79 | 870 | |
fc633e5b AM |
871 | * (unsigned int *) id4->contents = ordinal | 0x80000000; |
872 | * (unsigned int *) id5->contents = ordinal | 0x80000000; | |
17505c5c NC |
873 | } |
874 | else | |
875 | { | |
876 | char * symbol; | |
ee91ed79 | 877 | |
17505c5c NC |
878 | /* Create .idata$6 - the Hint Name Table. */ |
879 | id6 = pe_ILF_make_a_section (& vars, ".idata$6", SIZEOF_IDATA6, 0); | |
880 | if (id6 == NULL) | |
b34976b6 | 881 | return FALSE; |
17505c5c NC |
882 | |
883 | /* If necessary, trim the import symbol name. */ | |
884 | symbol = symbol_name; | |
885 | ||
886 | if (import_name_type != IMPORT_NAME) | |
87cc7031 NC |
887 | { |
888 | bfd_boolean skipped_leading_underscore = FALSE; | |
889 | bfd_boolean skipped_leading_at = FALSE; | |
890 | bfd_boolean skipped_leading_question_mark = FALSE; | |
891 | bfd_boolean check_again; | |
892 | ||
893 | /* Skip any prefix in symbol_name. */ | |
894 | -- symbol; | |
895 | do | |
896 | { | |
897 | check_again = FALSE; | |
898 | ++ symbol; | |
899 | ||
900 | switch (*symbol) | |
901 | { | |
902 | case '@': | |
903 | if (! skipped_leading_at) | |
904 | check_again = skipped_leading_at = TRUE; | |
905 | break; | |
906 | case '?': | |
907 | if (! skipped_leading_question_mark) | |
908 | check_again = skipped_leading_question_mark = TRUE; | |
909 | break; | |
910 | case '_': | |
911 | if (! skipped_leading_underscore) | |
912 | check_again = skipped_leading_underscore = TRUE; | |
913 | break; | |
914 | default: | |
915 | break; | |
916 | } | |
917 | } | |
918 | while (check_again); | |
919 | } | |
920 | ||
17505c5c NC |
921 | if (import_name_type == IMPORT_NAME_UNDECORATE) |
922 | { | |
923 | /* Truncate at the first '@' */ | |
924 | while (* symbol != 0 && * symbol != '@') | |
925 | symbol ++; | |
926 | ||
927 | * symbol = 0; | |
928 | } | |
ee91ed79 | 929 | |
11c8a8d1 NC |
930 | id6->contents[0] = ordinal & 0xff; |
931 | id6->contents[1] = ordinal >> 8; | |
ee91ed79 | 932 | |
11c8a8d1 | 933 | strcpy (id6->contents + 2, symbol); |
17505c5c NC |
934 | } |
935 | ||
17505c5c NC |
936 | if (import_name_type != IMPORT_ORDINAL) |
937 | { | |
dc810e39 AM |
938 | pe_ILF_make_a_reloc (&vars, (bfd_vma) 0, BFD_RELOC_RVA, id6); |
939 | pe_ILF_save_relocs (&vars, id4); | |
ee91ed79 | 940 | |
dc810e39 AM |
941 | pe_ILF_make_a_reloc (&vars, (bfd_vma) 0, BFD_RELOC_RVA, id6); |
942 | pe_ILF_save_relocs (&vars, id5); | |
17505c5c NC |
943 | } |
944 | ||
945 | /* Create extra sections depending upon the type of import we are dealing with. */ | |
946 | switch (import_type) | |
947 | { | |
948 | int i; | |
ee91ed79 | 949 | |
17505c5c NC |
950 | case IMPORT_CODE: |
951 | /* Create a .text section. | |
952 | First we need to look up its contents in the jump table. */ | |
953 | for (i = NUM_ENTRIES (jtab); i--;) | |
954 | { | |
955 | if (jtab[i].size == 0) | |
956 | continue; | |
957 | if (jtab[i].magic == magic) | |
958 | break; | |
959 | } | |
960 | /* If we did not find a matching entry something is wrong. */ | |
961 | if (i < 0) | |
962 | abort (); | |
963 | ||
964 | /* Create the .text section. */ | |
965 | text = pe_ILF_make_a_section (& vars, ".text", jtab[i].size, SEC_CODE); | |
966 | if (text == NULL) | |
b34976b6 | 967 | return FALSE; |
17505c5c NC |
968 | |
969 | /* Copy in the jump code. */ | |
970 | memcpy (text->contents, jtab[i].data, jtab[i].size); | |
971 | ||
11c8a8d1 NC |
972 | /* Create an import symbol. */ |
973 | pe_ILF_make_a_symbol (& vars, "__imp_", symbol_name, id5, 0); | |
974 | imp_sym = vars.sym_ptr_ptr - 1; | |
975 | imp_index = vars.sym_index - 1; | |
ee91ed79 | 976 | |
17505c5c | 977 | /* Create a reloc for the data in the text section. */ |
ee91ed79 | 978 | #ifdef MIPS_ARCH_MAGIC_WINCE |
17505c5c NC |
979 | if (magic == MIPS_ARCH_MAGIC_WINCE) |
980 | { | |
dc810e39 | 981 | pe_ILF_make_a_symbol_reloc (&vars, (bfd_vma) 0, BFD_RELOC_HI16_S, |
fc0a2244 | 982 | (struct bfd_symbol **) imp_sym, |
dc810e39 AM |
983 | imp_index); |
984 | pe_ILF_make_a_reloc (&vars, (bfd_vma) 0, BFD_RELOC_LO16, text); | |
985 | pe_ILF_make_a_symbol_reloc (&vars, (bfd_vma) 4, BFD_RELOC_LO16, | |
fc0a2244 | 986 | (struct bfd_symbol **) imp_sym, |
dc810e39 | 987 | imp_index); |
17505c5c NC |
988 | } |
989 | else | |
990 | #endif | |
dc810e39 AM |
991 | pe_ILF_make_a_symbol_reloc (&vars, (bfd_vma) jtab[i].offset, |
992 | BFD_RELOC_32, (asymbol **) imp_sym, | |
993 | imp_index); | |
ee91ed79 | 994 | |
17505c5c NC |
995 | pe_ILF_save_relocs (& vars, text); |
996 | break; | |
997 | ||
998 | case IMPORT_DATA: | |
999 | break; | |
1000 | ||
1001 | default: | |
1002 | /* XXX code not yet written. */ | |
1003 | abort (); | |
1004 | } | |
ee91ed79 | 1005 | |
17505c5c NC |
1006 | /* Initialise the bfd. */ |
1007 | memset (& internal_f, 0, sizeof (internal_f)); | |
ee91ed79 | 1008 | |
17505c5c NC |
1009 | internal_f.f_magic = magic; |
1010 | internal_f.f_symptr = 0; | |
1011 | internal_f.f_nsyms = 0; | |
1012 | internal_f.f_flags = F_AR32WR | F_LNNO; /* XXX is this correct ? */ | |
ee91ed79 | 1013 | |
dc810e39 | 1014 | if ( ! bfd_set_start_address (abfd, (bfd_vma) 0) |
17505c5c | 1015 | || ! bfd_coff_set_arch_mach_hook (abfd, & internal_f)) |
b34976b6 | 1016 | return FALSE; |
17505c5c NC |
1017 | |
1018 | if (bfd_coff_mkobject_hook (abfd, (PTR) & internal_f, NULL) == NULL) | |
b34976b6 | 1019 | return FALSE; |
17505c5c NC |
1020 | |
1021 | coff_data (abfd)->pe = 1; | |
ee91ed79 | 1022 | #ifdef THUMBPEMAGIC |
17505c5c NC |
1023 | if (vars.magic == THUMBPEMAGIC) |
1024 | /* Stop some linker warnings about thumb code not supporting interworking. */ | |
1025 | coff_data (abfd)->flags |= F_INTERWORK | F_INTERWORK_SET; | |
1026 | #endif | |
ee91ed79 | 1027 | |
17505c5c NC |
1028 | /* Switch from file contents to memory contents. */ |
1029 | bfd_cache_close (abfd); | |
1030 | ||
1031 | abfd->iostream = (PTR) vars.bim; | |
1032 | abfd->flags |= BFD_IN_MEMORY /* | HAS_LOCALS */; | |
1033 | abfd->where = 0; | |
1034 | obj_sym_filepos (abfd) = 0; | |
1035 | ||
1036 | /* Now create a symbol describing the imported value. */ | |
1037 | switch (import_type) | |
1038 | { | |
1039 | case IMPORT_CODE: | |
1040 | pe_ILF_make_a_symbol (& vars, "", symbol_name, text, | |
1041 | BSF_NOT_AT_END | BSF_FUNCTION); | |
ee91ed79 | 1042 | |
11c8a8d1 NC |
1043 | /* Create an import symbol for the DLL, without the |
1044 | .dll suffix. */ | |
1045 | ptr = strrchr (source_dll, '.'); | |
1046 | if (ptr) | |
1047 | * ptr = 0; | |
1048 | pe_ILF_make_a_symbol (& vars, "__IMPORT_DESCRIPTOR_", source_dll, NULL, 0); | |
1049 | if (ptr) | |
1050 | * ptr = '.'; | |
17505c5c NC |
1051 | break; |
1052 | ||
1053 | case IMPORT_DATA: | |
11c8a8d1 | 1054 | /* Nothing to do here. */ |
17505c5c | 1055 | break; |
ee91ed79 | 1056 | |
17505c5c NC |
1057 | default: |
1058 | /* XXX code not yet written. */ | |
1059 | abort (); | |
1060 | } | |
1061 | ||
17505c5c NC |
1062 | /* Point the bfd at the symbol table. */ |
1063 | obj_symbols (abfd) = vars.sym_cache; | |
1064 | bfd_get_symcount (abfd) = vars.sym_index; | |
ee91ed79 | 1065 | |
17505c5c NC |
1066 | obj_raw_syments (abfd) = vars.native_syms; |
1067 | obj_raw_syment_count (abfd) = vars.sym_index; | |
1068 | ||
1069 | obj_coff_external_syms (abfd) = (PTR) vars.esym_table; | |
b34976b6 | 1070 | obj_coff_keep_syms (abfd) = TRUE; |
ee91ed79 | 1071 | |
17505c5c NC |
1072 | obj_convert (abfd) = vars.sym_table; |
1073 | obj_conv_table_size (abfd) = vars.sym_index; | |
ee91ed79 | 1074 | |
17505c5c | 1075 | obj_coff_strings (abfd) = vars.string_table; |
b34976b6 | 1076 | obj_coff_keep_strings (abfd) = TRUE; |
17505c5c NC |
1077 | |
1078 | abfd->flags |= HAS_SYMS; | |
1079 | ||
b34976b6 | 1080 | return TRUE; |
17505c5c NC |
1081 | } |
1082 | ||
1083 | /* We have detected a Image Library Format archive element. | |
1084 | Decode the element and return the appropriate target. */ | |
cb665cd3 | 1085 | static const bfd_target * |
17505c5c NC |
1086 | pe_ILF_object_p (bfd * abfd) |
1087 | { | |
1088 | bfd_byte buffer[16]; | |
1089 | bfd_byte * ptr; | |
1090 | bfd_byte * symbol_name; | |
1091 | bfd_byte * source_dll; | |
1092 | unsigned int machine; | |
dc810e39 | 1093 | bfd_size_type size; |
17505c5c NC |
1094 | unsigned int ordinal; |
1095 | unsigned int types; | |
dc810e39 | 1096 | unsigned int magic; |
ee91ed79 | 1097 | |
17505c5c NC |
1098 | /* Upon entry the first four buyes of the ILF header have |
1099 | already been read. Now read the rest of the header. */ | |
dc810e39 | 1100 | if (bfd_bread (buffer, (bfd_size_type) 16, abfd) != 16) |
17505c5c NC |
1101 | return NULL; |
1102 | ||
1103 | ptr = buffer; | |
ee91ed79 | 1104 | |
17505c5c | 1105 | /* We do not bother to check the version number. |
dc810e39 | 1106 | version = H_GET_16 (abfd, ptr); */ |
17505c5c NC |
1107 | ptr += 2; |
1108 | ||
dc810e39 | 1109 | machine = H_GET_16 (abfd, ptr); |
17505c5c NC |
1110 | ptr += 2; |
1111 | ||
1112 | /* Check that the machine type is recognised. */ | |
1113 | magic = 0; | |
ee91ed79 | 1114 | |
17505c5c NC |
1115 | switch (machine) |
1116 | { | |
1117 | case IMAGE_FILE_MACHINE_UNKNOWN: | |
1118 | case IMAGE_FILE_MACHINE_ALPHA: | |
1119 | case IMAGE_FILE_MACHINE_ALPHA64: | |
1120 | case IMAGE_FILE_MACHINE_IA64: | |
1121 | break; | |
ee91ed79 | 1122 | |
17505c5c NC |
1123 | case IMAGE_FILE_MACHINE_I386: |
1124 | #ifdef I386MAGIC | |
1125 | magic = I386MAGIC; | |
1126 | #endif | |
1127 | break; | |
ee91ed79 | 1128 | |
17505c5c NC |
1129 | case IMAGE_FILE_MACHINE_M68K: |
1130 | #ifdef MC68AGIC | |
1131 | magic = MC68MAGIC; | |
1132 | #endif | |
1133 | break; | |
ee91ed79 | 1134 | |
17505c5c NC |
1135 | case IMAGE_FILE_MACHINE_R3000: |
1136 | case IMAGE_FILE_MACHINE_R4000: | |
1137 | case IMAGE_FILE_MACHINE_R10000: | |
ee91ed79 | 1138 | |
17505c5c NC |
1139 | case IMAGE_FILE_MACHINE_MIPS16: |
1140 | case IMAGE_FILE_MACHINE_MIPSFPU: | |
1141 | case IMAGE_FILE_MACHINE_MIPSFPU16: | |
1142 | #ifdef MIPS_ARCH_MAGIC_WINCE | |
1143 | magic = MIPS_ARCH_MAGIC_WINCE; | |
1144 | #endif | |
1145 | break; | |
ee91ed79 | 1146 | |
17505c5c NC |
1147 | case IMAGE_FILE_MACHINE_SH3: |
1148 | case IMAGE_FILE_MACHINE_SH4: | |
1149 | #ifdef SH_ARCH_MAGIC_WINCE | |
1150 | magic = SH_ARCH_MAGIC_WINCE; | |
1151 | #endif | |
1152 | break; | |
ee91ed79 | 1153 | |
17505c5c NC |
1154 | case IMAGE_FILE_MACHINE_ARM: |
1155 | #ifdef ARMPEMAGIC | |
1156 | magic = ARMPEMAGIC; | |
ee91ed79 | 1157 | #endif |
17505c5c | 1158 | break; |
ee91ed79 | 1159 | |
17505c5c NC |
1160 | case IMAGE_FILE_MACHINE_THUMB: |
1161 | #ifdef THUMBPEMAGIC | |
1162 | { | |
23ccc829 | 1163 | extern const bfd_target TARGET_LITTLE_SYM; |
ee91ed79 | 1164 | |
26bfd1c0 | 1165 | if (abfd->xvec == & TARGET_LITTLE_SYM) |
17505c5c NC |
1166 | magic = THUMBPEMAGIC; |
1167 | } | |
ee91ed79 | 1168 | #endif |
17505c5c | 1169 | break; |
ee91ed79 | 1170 | |
17505c5c NC |
1171 | case IMAGE_FILE_MACHINE_POWERPC: |
1172 | /* We no longer support PowerPC. */ | |
1173 | default: | |
1174 | _bfd_error_handler | |
d003868e AM |
1175 | (_("%B: Unrecognised machine type (0x%x)" |
1176 | " in Import Library Format archive"), | |
1177 | abfd, machine); | |
17505c5c | 1178 | bfd_set_error (bfd_error_malformed_archive); |
ee91ed79 | 1179 | |
17505c5c NC |
1180 | return NULL; |
1181 | break; | |
1182 | } | |
1183 | ||
1184 | if (magic == 0) | |
1185 | { | |
1186 | _bfd_error_handler | |
d003868e AM |
1187 | (_("%B: Recognised but unhandled machine type (0x%x)" |
1188 | " in Import Library Format archive"), | |
1189 | abfd, machine); | |
17505c5c | 1190 | bfd_set_error (bfd_error_wrong_format); |
ee91ed79 | 1191 | |
17505c5c | 1192 | return NULL; |
ee91ed79 | 1193 | } |
17505c5c NC |
1194 | |
1195 | /* We do not bother to check the date. | |
dc810e39 | 1196 | date = H_GET_32 (abfd, ptr); */ |
17505c5c | 1197 | ptr += 4; |
ee91ed79 | 1198 | |
dc810e39 | 1199 | size = H_GET_32 (abfd, ptr); |
17505c5c NC |
1200 | ptr += 4; |
1201 | ||
1202 | if (size == 0) | |
1203 | { | |
1204 | _bfd_error_handler | |
d003868e | 1205 | (_("%B: size field is zero in Import Library Format header"), abfd); |
17505c5c | 1206 | bfd_set_error (bfd_error_malformed_archive); |
ee91ed79 | 1207 | |
17505c5c NC |
1208 | return NULL; |
1209 | } | |
1210 | ||
dc810e39 | 1211 | ordinal = H_GET_16 (abfd, ptr); |
17505c5c NC |
1212 | ptr += 2; |
1213 | ||
dc810e39 | 1214 | types = H_GET_16 (abfd, ptr); |
17505c5c NC |
1215 | /* ptr += 2; */ |
1216 | ||
1217 | /* Now read in the two strings that follow. */ | |
1218 | ptr = bfd_alloc (abfd, size); | |
1219 | if (ptr == NULL) | |
1220 | return NULL; | |
ee91ed79 | 1221 | |
dc810e39 | 1222 | if (bfd_bread (ptr, size, abfd) != size) |
487e54f2 AM |
1223 | { |
1224 | bfd_release (abfd, ptr); | |
1225 | return NULL; | |
1226 | } | |
17505c5c NC |
1227 | |
1228 | symbol_name = ptr; | |
1229 | source_dll = ptr + strlen (ptr) + 1; | |
ee91ed79 | 1230 | |
17505c5c | 1231 | /* Verify that the strings are null terminated. */ |
11c8a8d1 | 1232 | if (ptr[size - 1] != 0 || ((unsigned long) (source_dll - ptr) >= size)) |
17505c5c NC |
1233 | { |
1234 | _bfd_error_handler | |
d003868e | 1235 | (_("%B: string not null terminated in ILF object file."), abfd); |
17505c5c | 1236 | bfd_set_error (bfd_error_malformed_archive); |
487e54f2 | 1237 | bfd_release (abfd, ptr); |
17505c5c NC |
1238 | return NULL; |
1239 | } | |
ee91ed79 | 1240 | |
17505c5c NC |
1241 | /* Now construct the bfd. */ |
1242 | if (! pe_ILF_build_a_bfd (abfd, magic, symbol_name, | |
1243 | source_dll, ordinal, types)) | |
487e54f2 AM |
1244 | { |
1245 | bfd_release (abfd, ptr); | |
1246 | return NULL; | |
1247 | } | |
ee91ed79 | 1248 | |
17505c5c NC |
1249 | return abfd->xvec; |
1250 | } | |
1251 | ||
1252 | static const bfd_target * | |
1253 | pe_bfd_object_p (bfd * abfd) | |
cb665cd3 | 1254 | { |
cb665cd3 | 1255 | bfd_byte buffer[4]; |
15e0ecd9 L |
1256 | struct external_PEI_DOS_hdr dos_hdr; |
1257 | struct external_PEI_IMAGE_hdr image_hdr; | |
cb665cd3 | 1258 | file_ptr offset; |
cb665cd3 NC |
1259 | |
1260 | /* Detect if this a Microsoft Import Library Format element. */ | |
dc810e39 AM |
1261 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0 |
1262 | || bfd_bread (buffer, (bfd_size_type) 4, abfd) != 4) | |
cb665cd3 NC |
1263 | { |
1264 | if (bfd_get_error () != bfd_error_system_call) | |
1265 | bfd_set_error (bfd_error_wrong_format); | |
1266 | return NULL; | |
1267 | } | |
ee91ed79 | 1268 | |
dc810e39 | 1269 | if (H_GET_32 (abfd, buffer) == 0xffff0000) |
17505c5c | 1270 | return pe_ILF_object_p (abfd); |
ee91ed79 | 1271 | |
dc810e39 AM |
1272 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0 |
1273 | || bfd_bread (&dos_hdr, (bfd_size_type) sizeof (dos_hdr), abfd) | |
15e0ecd9 | 1274 | != sizeof (dos_hdr)) |
cb665cd3 NC |
1275 | { |
1276 | if (bfd_get_error () != bfd_error_system_call) | |
1277 | bfd_set_error (bfd_error_wrong_format); | |
1278 | return NULL; | |
1279 | } | |
1280 | ||
15e0ecd9 L |
1281 | /* There are really two magic numbers involved; the magic number |
1282 | that says this is a NT executable (PEI) and the magic number that | |
1283 | determines the architecture. The former is DOSMAGIC, stored in | |
1284 | the e_magic field. The latter is stored in the f_magic field. | |
1285 | If the NT magic number isn't valid, the architecture magic number | |
1286 | could be mimicked by some other field (specifically, the number | |
1287 | of relocs in section 3). Since this routine can only be called | |
1288 | correctly for a PEI file, check the e_magic number here, and, if | |
1289 | it doesn't match, clobber the f_magic number so that we don't get | |
1290 | a false match. */ | |
dc810e39 | 1291 | if (H_GET_16 (abfd, dos_hdr.e_magic) != DOSMAGIC) |
15e0ecd9 L |
1292 | { |
1293 | bfd_set_error (bfd_error_wrong_format); | |
1294 | return NULL; | |
1295 | } | |
cb665cd3 | 1296 | |
dc810e39 AM |
1297 | offset = H_GET_32 (abfd, dos_hdr.e_lfanew); |
1298 | if (bfd_seek (abfd, offset, SEEK_SET) != 0 | |
1299 | || (bfd_bread (&image_hdr, (bfd_size_type) sizeof (image_hdr), abfd) | |
1300 | != sizeof (image_hdr))) | |
cb665cd3 NC |
1301 | { |
1302 | if (bfd_get_error () != bfd_error_system_call) | |
1303 | bfd_set_error (bfd_error_wrong_format); | |
1304 | return NULL; | |
1305 | } | |
1306 | ||
dc810e39 | 1307 | if (H_GET_32 (abfd, image_hdr.nt_signature) != 0x4550) |
cb665cd3 NC |
1308 | { |
1309 | bfd_set_error (bfd_error_wrong_format); | |
1310 | return NULL; | |
1311 | } | |
ee91ed79 | 1312 | |
cb665cd3 | 1313 | /* Here is the hack. coff_object_p wants to read filhsz bytes to |
15e0ecd9 L |
1314 | pick up the COFF header for PE, see "struct external_PEI_filehdr" |
1315 | in include/coff/pe.h. We adjust so that that will work. */ | |
dc810e39 | 1316 | if (bfd_seek (abfd, (file_ptr) (offset - sizeof (dos_hdr)), SEEK_SET) != 0) |
cb665cd3 NC |
1317 | { |
1318 | if (bfd_get_error () != bfd_error_system_call) | |
1319 | bfd_set_error (bfd_error_wrong_format); | |
1320 | return NULL; | |
1321 | } | |
1322 | ||
1323 | return coff_object_p (abfd); | |
1324 | } | |
1325 | ||
1326 | #define coff_object_p pe_bfd_object_p | |
17505c5c | 1327 | #endif /* COFF_IMAGE_WITH_PE */ |